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Grazoprevir + Elbasvir

Phase 3

Hepatitis C Infection | Small molecule | Infectious Disease |Merck & Company, Inc.|Last Updated: Feb 5, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment420
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02105701Study of Efficacy and Safety of Grazoprevir (MK-5172) + Elbasvir (MK-8742) With or Without Ribavirin for Participants With Hepatitis C Genotype 1, 4, or 6 Infections Who Have Failed Prior Treatment With Pegylated Interferon + Ribavirin (MK-5172-068)PHASE3 COMPLETED 420Jun 5, 2014Jun 19, 2015Feb 5, 2021 -
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Study Endpoints
Primary Endpoints
Percentage of Participants Achieving Undetectable HCV RNA 12 Weeks After Completing Study Therapy (SVR12)
12 weeks after the end of all study treatment (up to 28 weeks)

HCV RNA was measured using the Roche COBAS® Taqman® HCV Test, v2.0 assay.

Number of Participants Experiencing Adverse Events (AE)
Up to 18 weeks

An AE is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Number of Participants Discontinuing Study Treatment Due to an AE
Up to 16 weeks

An AE is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Secondary Endpoints
Percentage of Participants Achieving Undetectable HCV RNA 24 Weeks After the End of All Treatment (SVR24)
24 weeks after the end of all study treatment (up to 40 weeks)
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Grazoprevir + Elbasvir 12 weeksEXPERIMENTALParticipants receive grazoprevir 100 mg/elbasvir 50 mg fixed-dose combination (FDC) tablets once daily (q.d.) by mouth for 12 weeks.
Grazoprevir + Elbasvir + RBV 12 weeksEXPERIMENTALParticipants receive grazoprevir 100 mg/elbasvir 50 mg FDC tablets q.d. by mouth, along with RBV capsules twice daily (b.i.d.) by mouth (weight-based dosing; 800 to 1400 mg total daily dose), for 12 weeks.
Grazoprevir + Elbasvir 16 weeksEXPERIMENTALParticipants receive grazoprevir 100 mg/elbasvir 50 mg FDC tablets q.d. by mouth for 16 weeks.
Grazoprevir + Elbasvir + RBV 16 weeksEXPERIMENTALParticipants receive grazoprevir 100 mg/elbasvir 50 mg FDC tablets q.d. by mouth, along with RBV capsules b.i.d. by mouth (weight-based dosing; 800 to 1400 mg total daily dose), for 16 weeks.
Interventions
NameTypeDescription
Grazoprevir + ElbasvirDRUGFDC tablet containing grazoprevir 100 mg and elbasvir 50 mg.
RibavirinDRUG200 mg capsule
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Documented chronic HCV GT1, GT4, or GT6 with no evidence of non-typable or mixed genotype infection (positive for anti-HCV antibody, HCV ribonucleic acid \[RNA\], or any of the listed GTs at least 6 months prior to screening must be confirmed by screening lab results) * Cirrho...

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